How To Fix /SCWM/PSA031 - Error while converting quantity into material unit of measure

SAP Error Message - Details

• Message type: E = Error

• Message class: /SCWM/PSA -

• Message number: 031

• Message text: Error while converting quantity into material unit of measure

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /SCWM/PSA031 - Error while converting quantity into material unit of measure ?

  The SAP error message /SCWM/PSA031 indicates that there is an issue with converting a quantity into the material unit of measure in the Extended Warehouse Management (EWM) module. This error typically arises during processes such as goods movements, stock transfers, or inventory management when the system cannot convert the specified quantity into the appropriate unit of measure for the material.
  Causes:
  
  
  Incorrect Unit of Measure Configuration: The material may not have the correct unit of measure (UoM) settings in the material master data. This can include missing conversion factors or incorrect definitions.
  
  
  Missing Conversion Factors: If the conversion factors between the base unit of measure and the alternative units of measure are not defined, the system will not be able to perform the conversion.
  
  
  Inconsistent Data: There may be inconsistencies in the data entered, such as using a quantity that does not align with the defined units of measure.
  
  
  Unit of Measure Group Issues: The material may be assigned to a unit of measure group that does not support the conversion being attempted.
  
  
  Decimal Places Configuration: The number of decimal places defined for the material's unit of measure may not allow for the conversion of the specified quantity.
  
  
  Solutions:
  
  
  Check Material Master Data: Review the material master data for the affected material. Ensure that the unit of measure settings are correct and that all necessary conversion factors are defined.
  
  
  Define Conversion Factors: If conversion factors are missing, you can define them in the material master under the "Units of Measure" tab. Ensure that the base unit of measure and any alternative units of measure have the correct conversion factors.
  
  
  Validate Input Data: Ensure that the quantity being entered is valid and corresponds to the defined units of measure. Check for any typos or incorrect entries.
  
  
  Review Unit of Measure Groups: Check the unit of measure group assigned to the material and ensure it includes all necessary units for conversion.
  
  
  Adjust Decimal Places: If the issue is related to decimal places, adjust the settings in the material master to allow for the required precision.
  
  
  Consult SAP Notes: Check for any relevant SAP Notes or updates that may address known issues related to this error message.
  
  
  Related Information:
  
  Transaction Codes: You can use transaction codes like MM02 to change material master data, MM03 to display it, and MM01 to create new material master records.
  EWM Configuration: Review the EWM configuration settings related to units of measure and ensure they align with your business processes.
  SAP Help Portal: The SAP Help Portal provides documentation and guides on managing units of measure in EWM, which can be useful for troubleshooting.
  
  If the issue persists after checking these areas, it may be beneficial to consult with your SAP support team or a functional consultant who specializes in EWM for further assistance.